Wikileaks, though technically not a wiki, provides an easy means to disseminate information that some find it desirable to share against the wishes of those who find it desirable to keep secret. Aside from the morality of the leaking itself, such a service provides a look into the activities of...

4 Wheel Thunder Cheats

4 Wheel Thunder

Dreamcast

Beat 'Em:
Beat Championship mode to unlock 6 more tracks, Arcade mode for 8 more tracks,
and Indoor mode for 5 more tracks.

Full Pause Screen:
As with most other Dreamcast games, hit X+Y at the pause screen to remove
the menus from view.

Jackpot Cheat:
After finishing a race in Championship mode, save your game in case a you
get to try for the jackpot. If you don't win it on the first try, simply
reload your game in the options menu and keep trying until you win.

Boost Start:
In a race, when the time is counting down, right before the 1 fades away
press gas and turbo at the same time and you will get a small amount of
turbo to get to the first boost icon.

Three New Trucks:
Complete championship, arcade, and indoor modes to unlock one new truck
for each game mode completed.